Urgent Treatment Trigger at ≥160/110 mmHg
Placeholder: severe range requires prompt antihypertensive therapy.
- ≥160/110: Severe threshold (mmHg, placeholder)
- <60 min: Treatment window (placeholder)
- Elevated: Stroke risk (placeholder)
- Urgent care: Setting (placeholder)
Why 160/110 defines urgency
Placeholder sentence about severe hypertension urgency threshold.
Alpha/Beta Adrenergic Blockade
Placeholder: labetalol blocks alpha-1 and beta receptors together.
- α1 + β1/β2: Receptor targets (placeholder)
- IV / oral: Route (placeholder)
- ~30–60 min: Onset (placeholder)
- Favorable: Fetal safety (placeholder)
Combined blockade effect
Placeholder sentence describing labetalol dual receptor action.
Calcium Channel Blockade & Vessel Relaxation
Placeholder: nifedipine blocks L-type calcium channels in smooth muscle.
- L-type Ca²⁺: Channel target (placeholder)
- Oral: Route (placeholder)
- ~30 min: Onset (placeholder)
- Extended-release: Formulation (placeholder)
Smooth muscle relaxation
Placeholder sentence describing nifedipine vasodilation mechanism.
Goal Blood Pressure in Pregnancy
Placeholder: target range balances maternal and fetal perfusion.
- 120–160/80–105: Target range (mmHg placeholder)
- Overcorrection: Avoid (placeholder)
- Frequent checks: Monitoring (placeholder)
- Stable perfusion: Goal (placeholder)
Balancing maternal and fetal needs
Placeholder sentence about target BP window rationale.
Choosing Therapy by Clinical Scenario
Placeholder: selection depends on severity, contraindications, urgency.
- IV labetalol: Severe cases (placeholder)
- Oral options: Non-severe (placeholder)
- Avoid beta-block: Asthma caution (placeholder)
- Sometimes needed: Combination (placeholder)
Scenario-based selection
Placeholder sentence summarizing drug choice logic.
Placeholder key takeaway on individualized antihypertensive choice.